摘要:
[Problem] To provide a polyurethane elastic yarn which has the high strength and ductility sought in polyurethane elastic yarn, and also has excellent durability and heat resistance, as well as little fatigue at low temperature; and a production method thereof.[Means of Resolution] A polyurethane elastic yarn made from polyurethane which has polymer diol and diisocyanate as starting substances, wherein said polyurethane comprises a polyurethane A containing a polybutadiene structure in which the proportion of 1,2-bonded butadiene structure to 1,4-bonded butadiene structure in the molecule is in the range from 91:9 to 20:80.
摘要:
Disclosed is a printing machine comprising: encoders (311 and 312) configured to detect respective angular velocities of a drive roller and a driven roller as a travel speed of core members inside a transfer belt (160); a DSP (321) configured to extract from a temporal variation in a ratio of the measured speed at each roller speed ratio data (profile data) having a frequency corresponding to the speed ratio of a core portion; profile data memory (332) configured to store the profile data; and a head controller (334) configured to control the timing at which each image is formed by a head unit (110) on the basis of the profile data so that positional deviation among multiple images on the transfer belt (160) may be reduced. The head unit (110) forms multiple images on a record medium under the control of the head controller (334). Thus, an ink misalignment at the time of printing can be prevented with high accuracy by recording a change in the core members inside the belt as a profile, using this profile, and reducing memory usage and arithmetic processing load.
摘要:
A forming method wherein a billet (31, 66, 77, 87, 107, 128, 136, 144, 153, 77B, 77C) comprising a metal-based composite material (27) prepared by mixing an aluminum alloy (22) and a ceramic (15) is subjected to pressure forming to manufacture a formed article, which comprises carrying out the pressure forming by the use of different compression ratios for different portions of the formed article, wherein a compression ratio means the ratio of the height of a billet before the pressure forming to height of the billet after the pressure forming. The above forming method allows the manufacture of a formed article having different volume contents 8Vf) of the ceramic for different portions thereof.
摘要:
A brake drum has its strength elevated in its disk portion. The brake drum is formed from a composition having ceramics dispersed in a matrix. The disk portion has a high ceramic content and thereby a high strength. The brake drum has a disk portion and a cylindrical portion. The disk portion has a first ceramic content by volume and the cylindrical portion has a second ceramic content by volume that is less than the first ceramic content by volume as a result of the application of a higher compression ratio to the disk portion.
摘要:
An information processing apparatus comprising image reading means for reading image data, a body with control means for subjecting read image data to information processing together with document data, and receiving means for receiving the image reading means, the receiving means being detachably data mounted in the body, wherein which is configured to allow a document, which is to be read by the image reading means, to travel across a surface that includes the reading position of the image reading means, while the image reading means is mounted in the body by being housed in the receiving means.
摘要:
A speaker diaphragm contains a material obtained by adding a cycloolefin polymer resin to a carbon fiber-reinforced liquid crystal polymer. The speaker diaphragm having high sound velocity, a speaker, and a production method of the speaker diaphragm can thereby be obtained.
摘要:
Disclosed is a chemical thermal energy storage material structure, including a granular chemical thermal energy storage material, a clay mineral having a layered ribbon structure, and a complex metal silicate that is generated by a reaction between the above-mentioned chemical thermal energy storage material and the above-mentioned clay mineral and that includes at least one type of alkaline earth metal.
摘要:
Disclosed is an elastic polyurethane yarn which can exhibit excellent heat resistance even when an unsaturated fatty acid or a heavy metal is attached to the yarn during dyeing at a high temperature, and which has high elastic recovery and high strength/elongation. Specifically disclosed is an elastic yarn comprising a polyurethane mainly composed of a polymer diol and a diisocyanate, which contains (a) a hindered phenol compound, (b) an N,N-dialkylsemicarbazide compound and (c) a nitrogenated aromatic compound, wherein the nitrogenated aromatic compound (c) is contained in an amount of 0.01 to 0.30 weight % inclusive.
摘要:
An image forming apparatus capable of performing a double-side printing process is described. The transportation efficiency and the productivity can be improved by narrowing the distance between adjacent print sheets for use in absorbing the disparity in the transportation of print sheets. The image forming apparatus includes a switchback route which is connected to a circulating transportation route CR as a branch, receives a print sheet from the circulating transportation route CR, moves the print sheet backwards and forwards, and return the print sheet to the circulating transportation route CR in order to reverse the print sheet; a scheduling unit 201 for determining the schedule of transporting the print sheets through the circulating transportation route CR and the switchback route SR; a monitoring unit 203 for monitoring the transportation position of the print sheet along the circulating transportation route CR or the switchback route SR; and a reversing route control unit 204b for controlling the stay time of the print sheet in the switchback route SR on the basis of the transportation schedule determined by the scheduling unit 201 with reference to the transportation position monitored by the monitoring unit 203.
摘要:
A brake drum has its strength elevated in its disk portion. The brake drum is formed from a composition having ceramics dispersed in a matrix. The disk portion has a high ceramic content and thereby a high strength. Its cylindrical portion has a ceramic content decreasing gradually from the outer edge of the disk portion.